This document summarizes the features and specifications of Camfil Farr GB Series air filter housings. The housings are designed to prevent hazardous airborne materials from escaping during filter changes through the use of an enclosed bag system. They isolate personnel from contaminants and can accommodate various filter and component configurations. Common applications include facilities that handle chemicals, foods, genetics research, hospitals, and other industrial processes involving hazardous materials. The housings are constructed of stainless steel and have options for additional features depending on the specific application needs.
Learn the definition of passivation in the pharmaceutical industry, its importance and the suitable regulations in North America. This short presentation is useful for people not familiar with the topic.
Definition and Objectives of Lyophilization, Advantages & Disadvantages, Basic Principles of Lyophilization, Steps of Lyophilization,
Main Components of Lyophilizer,
Qualification of Lyophilizer,
Development of Lyophilization cycle, Defects of Lyophilizer.
Learn the definition of passivation in the pharmaceutical industry, its importance and the suitable regulations in North America. This short presentation is useful for people not familiar with the topic.
Definition and Objectives of Lyophilization, Advantages & Disadvantages, Basic Principles of Lyophilization, Steps of Lyophilization,
Main Components of Lyophilizer,
Qualification of Lyophilizer,
Development of Lyophilization cycle, Defects of Lyophilizer.
Freeze drying pharmaceuticals uses a process called lyophilization to lower the temperature of the product to below freezing, and then a high-pressure vacuum is applied to extract the water in the form of vapour. The vapour collects on a condenser, turns back to ice and is removed.
Control on Cleanroom Environmental Monitoring (Pharmaceutical)Srinath Sasidharan
A general consideration of Environmental Monitoring in Pharmaceutical manufacturing area. Cleanroom Monitoring Tools and Utilities: Author Sreenath Sasidharan (Geltec Healthcare FZE)
A stabilizing process in which a substance is first frozen and then the quantity of the solvent is reduced, first by sublimation (primary drying stage) and then desorption (secondary drying stage) to values that will no longer support biological activity or chemical reactions
Good Manufacturing PracticeFor LVP,SVP, ophthalmic veterinary medicine, bulk chemicals & invitro diagnostic
For Good business Practice
A control process gives reproducibility & product consistency with in known limits
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Freeze drying pharmaceuticals uses a process called lyophilization to lower the temperature of the product to below freezing, and then a high-pressure vacuum is applied to extract the water in the form of vapour. The vapour collects on a condenser, turns back to ice and is removed.
Control on Cleanroom Environmental Monitoring (Pharmaceutical)Srinath Sasidharan
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A stabilizing process in which a substance is first frozen and then the quantity of the solvent is reduced, first by sublimation (primary drying stage) and then desorption (secondary drying stage) to values that will no longer support biological activity or chemical reactions
Good Manufacturing PracticeFor LVP,SVP, ophthalmic veterinary medicine, bulk chemicals & invitro diagnostic
For Good business Practice
A control process gives reproducibility & product consistency with in known limits
Provides license to do business.
Implementing and Managing Pre-use Post-sterilization Integrity Testing (PUPSIT)MilliporeSigma
This presentation explores best practices and case studies in aseptic processing, including how to implement and manage PUPSIT. You will learn:
• Integrity Testing – the background on IT itself, why it is important, and how it works
• Filtration setups and single-use technology
• The PUPSIT debate and how PUPSIT can be achieved with current technology, final filling, formulation, filtration
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Implementing and Managing Pre-use Post-sterilization Integrity Testing (PUPSIT)Merck Life Sciences
This presentation explores best practices and case studies in aseptic processing, including how to implement and manage PUPSIT. You will learn:
• Integrity Testing – the background on IT itself, why it is important, and how it works
• Filtration setups and single-use technology
• The PUPSIT debate and how PUPSIT can be achieved with current technology, final filling, formulation, filtration
To learn more about this topic or collaborate with our technical experts, schedule a remote visit at our M Lab™ Collaboration Centers: www.merckmillipore.com/remotevisit
Utilizing Tubular UF Membrane Filtration for Wastewater ReuseBerghof Membranes
Water is a valuable asset to any industry. Implementing an efficient wastewater reuse and treatment system will lower the dependency on fresh water sources.
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TRAINING MODULE FOR IMPLEMENTATION OF GOOD MANUFACTURING PRACTICES FOR STERILE PRODUCT MANUFACTURING.
This training module is prepared based on (Annex 6. TRS 961, 2011) & readers are highly recommended to see this document in conjunction with Annex 6. TRS 961, 2011.
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Sustainability has become an increasingly critical topic as the world recognizes the need to protect our planet and its resources for future generations. Sustainability means meeting our current needs without compromising the ability of future generations to meet theirs. It involves long-term planning and consideration of the consequences of our actions. The goal is to create strategies that ensure the long-term viability of People, Planet, and Profit.
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LEARNING OBJECTIVES
1. Develop a comprehensive understanding of the fundamental principles and concepts that form the foundation of sustainability within corporate environments.
2. Explore the sustainability implementation model, focusing on effective measures and reporting strategies to track and communicate sustainability efforts.
3. Identify and define best practices and critical success factors essential for achieving sustainability goals within organizations.
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1. Introduction and Key Concepts of Sustainability
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A Memorandum of Association (MOA) is a legal document that outlines the fundamental principles and objectives upon which a company operates. It serves as the company's charter or constitution and defines the scope of its activities. Here's a detailed note on the MOA:
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Name Clause: This clause states the name of the company, which should end with words like "Limited" or "Ltd." for a public limited company and "Private Limited" or "Pvt. Ltd." for a private limited company.
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Registered Office Clause: It specifies the location where the company's registered office is situated. This office is where all official communications and notices are sent.
Objective Clause: This clause delineates the main objectives for which the company is formed. It's important to define these objectives clearly, as the company cannot undertake activities beyond those mentioned in this clause.
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Liability Clause: It outlines the extent of liability of the company's members. In the case of companies limited by shares, the liability of members is limited to the amount unpaid on their shares. For companies limited by guarantee, members' liability is limited to the amount they undertake to contribute if the company is wound up.
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Capital Clause: This clause specifies the authorized capital of the company, i.e., the maximum amount of share capital the company is authorized to issue. It also mentions the division of this capital into shares and their respective nominal value.
Association Clause: It simply states that the subscribers wish to form a company and agree to become members of it, in accordance with the terms of the MOA.
Importance of Memorandum of Association:
Legal Requirement: The MOA is a legal requirement for the formation of a company. It must be filed with the Registrar of Companies during the incorporation process.
Constitutional Document: It serves as the company's constitutional document, defining its scope, powers, and limitations.
Protection of Members: It protects the interests of the company's members by clearly defining the objectives and limiting their liability.
External Communication: It provides clarity to external parties, such as investors, creditors, and regulatory authorities, regarding the company's objectives and powers.
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Binding Authority: The company and its members are bound by the provisions of the MOA. Any action taken beyond its scope may be considered ultra vires (beyond the powers) of the company and therefore void.
Amendment of MOA:
While the MOA lays down the company's fundamental principles, it is not entirely immutable. It can be amended, but only under specific circumstances and in compliance with legal procedures. Amendments typically require shareholder
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"𝐄𝐯𝐞𝐫𝐲 𝐞𝐯𝐞𝐧𝐭 𝐢𝐬 𝐚 𝐬𝐭𝐨𝐫𝐲, 𝐚 𝐬𝐩𝐞𝐜𝐢𝐚𝐥 𝐣𝐨𝐮𝐫𝐧𝐞𝐲. 𝐖𝐞 𝐚𝐥𝐰𝐚𝐲𝐬 𝐛𝐞𝐥𝐢𝐞𝐯𝐞 𝐭𝐡𝐚𝐭 𝐬𝐡𝐨𝐫𝐭𝐥𝐲 𝐲𝐨𝐮 𝐰𝐢𝐥𝐥 𝐛𝐞 𝐚 𝐩𝐚𝐫𝐭 𝐨𝐟 𝐨𝐮𝐫 𝐬𝐭𝐨𝐫𝐢𝐞𝐬."
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Bag in bag out camfil
1. gb housing
Gasket Seal Bag-In/Bag-Out Air Filter Housing
Camfil Farr GB Series Housings are designed for
use in critical processes where hazardous airborne
materials must be prevented from escaping to the
atmosphere. Air filters may be replaced using a
control barrier to protect change-out personnel
from contaminants within the housing or
contaminants captured by the filters.
The Camfil Farr GB Housing minimizes exposure
to harmful contaminants during filter service
through the use of a PVC bag enclosure system.
The entire filter changing process isolates
personnel from the hazardous materials.
Although the Camfil Farr GB Housing is available
in a basic configuration various options specific to
the application are available.
1400 pounds of These housings are typically used in facilities that
incorporate hazardous materials in their processes.
gasket-sealing These contaminants may include biomedical,
radiological, carcinogenic or other materials of
integrity to ensure concern. Some specific applications include:
• Chemical manufacturing facilities
complete capture of • Food processing
airborne contaminants • Genetic research and biotechnology
facilities
• Hospital Isolation Suites to prevent the
spread of infectious diseases
• Industrial processes exhaust
• Microelectronic and semiconductor facilities
• Nuclear power plants
• Pharmaceutical facilities
• Radioisotope handling facilities
• University research laboratories
• US Department of Energy Facilities
• Veterinary research and animal disease
laboratories
• Specific United States Government facilities
including military and the Department of
State.
The highest level of personnel protection.
Camfil Farr Product bulletin
GB Housing 3402 – 0606
Camfil Farr—clean air solutions
2. Containment Train Components
Figure 2
Figure 1
Camfil Farr GB Housings are available in Particulate Filters
configurations from ½ x ½ (that include the
installation of one filter 12” by 12” size) to Typically the primary filter in a containment
configurations that are 1 x 3 that allow the system is a high efficiency particulate arrestor
service of up to three 24” by 24” filters from a (HEPA). Camfil Farr HEPA filters are
single service door. manufactured under strict quality control
guidelines. Every filter is tested to ensure that
Units may be stacked or connected in series the particulate efficiency meets or exceeds the
dependent upon the airflow requirements and requirements of the application. Particulate filters
contaminants of concern. The housing in Figure are available from 99.97% on particles 0.3
1 shows a stacked unit that is 3 filters high by 2 micron in size to 99.9995% on particles 0.12
filters wide and includes 3 stages of air filtration. micron in size. All Camfil Farr HEPA filters
Personnel in critical applications need an extra include a unique poured-in-place seamless
level of protection during filter service and gasket for superior filter sealing integrity.
maintenance. In many cases containment Conventional closed-cell neoprene gaskets are
measures are required by Federal or State also available.
mandates or by recommended practices by other
cognizant authorities. The details of each Molecular Filtration
enclosure are clearly identified on a stainless
steel label (Figure 2). The following components Hazardous gases may be removed from the
assure compliance with these mandates. airstream through the application of various
configurations of adsorbers. Adsorbers should
Prefiltration be selected for their affinity to the hazardous gas
contaminant of concern or combination of gases
Camfil Farr GB Housings can incorporate a involved. In some cases multiple stages of
prefilter track to extend the life of the primary adsorbers should be applied, and in all cases
filters. Tracks may accommodate 2”, 4”, or 6” adsorbers should be prefiltered. An additional
deep prefilters. Access to prefiltration may be stage of prefiltration may be required
through the same door as the final filter without downstream of the adsorber to capture any
disturbing final filter integrity. A separate door particulate that may be generated by the
may also be provided for prefilter access only. adsorber. Consult Camfil Farr Bulletin 3431.
Prefiltration efficiency typically ranges from a
MERV 7 to a MERV 14 when evaluated under
ASHRAE Filter Testing Standard 52.2-1999.
2
3. Test Sections Access Door (s)
Most installations will require an in-place filter Access doors, of the same
efficiency evaluation to ensure that the system is construction materials as
performing to specifications. Applications that the housing, include a built-
should incorporate test sections include any in bagging ring cavity to
system where access to upstream and store the filter change bag
downstream ductwork may be restricted. In- during system operation.
place test sections minimize system train Each access door includes
distance requirements that are typical for proper a high-memory silicone
mixing of challenge aerosol. In most cases the gasket that recreates a
entire bank of air filters is evaluated for overall positive housing to ambient
efficiency. Scan test sections are also available seal after each filter
that allow individual filter scanning for leaks. change. Convenient permanent door handles are
Consult Camfil Bulletin 3407. optimally placed so the doors have a natural
balance during filter change.
CBR Systems (Special)
Removable Star-Style Door Knobs
A CBR system is a single filter system designed
to control chemical, biological and radiological Each door is secured through the
contaminants that may be generated by wartime, use of four threaded studs with
terrorist or industrial accident. The system removable star knobs. After filter
usually includes prefiltration, gaseous adsorbers change the knobs are tightened in
and post filters for particulate removal in one an alternating pattern to ensure an
certified leak free module. Contact factory for even and secure housing seal.
assistance with CBR units.
Dual Ribbed Bagging Rings
Standard Component Construction
Each filter access port includes a ribbed bagging
8-Mil Change-out Bag ring assembly for attachment of an 8-mil
changing bag of poly vinyl
Each Camfil Farr Housing includes a translucent chloride (PVC) construction.
poly vinyl chloride bag mounted behind each Two ribs are included as
access door. Standard bags include three glove required to facilitate the filter
sleeves to facilitate handling of the filter (s) and changing process. The
an elastic shock cord to bagging ring is continuously
seal internal components welded and hemmed to
from the atmosphere prevent damage to the bag.
during a change. Bag
replacement data is Filter-Sealing Assembly
engraved on the label of
each housing as well as Camfil Farr GB Housings
identified with a label on incorporate a linkage
the shock cord supplied clamping mechanism that
with the bag. Consult may be operated with a
Camfil Bulletin 3410. standard wrench from
outside of the housing.
Stainless Steel Construction
Camfil Farr GB Housings are completely factory
assembled and constructed of 304 stainless Filter seal adjustment is accomplished by a
steel sheet metal. There are no painted surfaces, clearly identified hexagonal
nor cross-contamination from the use of carbon/ cranking bolt. Up to 1400
mild steel materials. Each housing is warranted pounds of filter seal may be
to withstand 15” w.g. positive or negative applied. Leak paths from
pressure without failure of the housing to the mechanism's
ambient air seal or compromise of the overall penetration of the housing
housing integrity. Each housing is tested to this wall are eliminated through
level and test reports are available on request. the use of a gasketed bolt-
Camfil Farr has the ability to custom design seal cover.
housing integrity to most operating conditions.
3
4. Optional Components Drilled Flanges
(see last page for standard specifications on these items)
Camfil Farr can provide pre-drilled duct
Banding Kit connection flanges. Holes are typically 7/16” in
diameter with spacing not to exceed 4” (per
The Camfil Farr DOE-HDBK-1169-2003 “Nuclear Air Cleaning
Banding Kit Handbook”). For a bolt hole drawing of your
includes a case/lap housing model please consult factory .
apron, a heavy duty
tie-banding gun, Filter Change-out Tray
PVC bag cutting
shears, a 7” Velcro A filter change-out tray provides support for the
cinching strap and filters during the service process. Connecting
ten 100-lb tensile conveniently to the door latches it can support
strength banding ties. The kit offers assurance filters and bagging components up to 300-lbs.
that all required change components are readily Filter change-out trays are highly
available in one convenient package. Consult recommended for housing applications where
Camfil Bulletin 3410. ladders may be required for service or housings
are in a difficult-to-reach location, or where
Construction Materials heavy carbon adsorbers may be applied.
Consult Camfil Bulletin 3410.
Alternate materials of construction are available.
As an example, the unit locking mechanism is Lifting Lugs
available with all stainless steel components.
Please consult the factory if your application Camfil Farr can provide lifting lugs for unit
requires non-listed components of construction. transport and support
during installation. The lugs
Dampers are of 1/4” thick 304
stainless steel and have a
Dampers allow pre-drilled 1-1/2” hole.
isolation of Common lifting lug
components during locations include the top or
filter change or side of the housing.
decontamination
processes. Camfil Farr Plenums & Transitions
manufacturers low-
leakage and bubble- Camfil Farr can manufacture all components
tight designs. Consult required for complete system integrity.
Camfil Bulletins 3440. Matching plenums of the same construction as
the housing are available to mate with existing
Decontamination Ports equipment or ductwork. Transitions are also
available to mate to equipment offsets.
Camfil Farr can provide
decontamination ports for the Prefilter Housings
injection of materials designed
to force neutralization of Camfil Farr can
contaminants. This photo provide housings
shows plug sitting on top of the with integral
port assembly. Plug type is ring- prefilter sections
seal positive. for application of
2”, 4”, or 6” deep
prefilters.
DOP/Freon Test Ports Various prefilter
configurations
To facilitate in-place filter evaluation Camfil Farr are available.
can supply integral tests ports for the sampling of Camfil Farr can
the challenge aerosol. Commonly referred to as provide most of
DOP/Freon test ports, they are also applicable to the filtration
today’s modern technology of alternate test components that may be required. Consult
challenges. Camfil Farr Bulletin 3403 for prefilter section
information.
4
5. Pressure Gages attached and sealed against weather intrusion. If
pre-drilled flanges are required the weather cap
Camfil Farr can provide factory-mounted is bolted to the housing to allow access to
differential pressure gages to evaluate mounting flanges.
resistance across individual filters or any
combination of internal components. Gage Additional Options
connections include copper tubing and brass (require factory consultation)
fittings. Stainless steel tubing and fittings are
also available. Casters
Pressure Taps (static) Camfil Farr Safety & Protection Housings may
be mobilized with casters to allow use of the
Static pressure taps are available to facilitate the units in alternate locations.
connection of gages or other ancillary
equipment. For on-site application of gages, taps Certified Weld Inspection (CWI)
include a removable brass plug.
Visual weld inspection can be performed by a
Security & Cinching Straps certified weld inspector qualified to Section 6.1 of
the American Welding Society Standards For
Replacement straps are available. Consult Qualification and Certification of Welding
Camfil Bulletin 3410 Inspections, QC1-96. The inspections will be
performed under the guidelines of AWS D9.1M/
Swivel Door Latches D9.1:2000.
Camfil Farr housings are available with swivel Flanges
door latches to allow the latches to swing away
from the filter change opening. Door latch Quarter-inch thick stainless steel plate flanges
components are captive as a precaution against are available. The flanges can be furnished with
dropping or losing them. Swivel door latches are 7/16" diameter holes no more than 4" on center
highly recommended for housing applications as recommended in DOE-HDBK-1169-2003
where ladders may be required for service, or "Nuclear Air Cleaning Handbook", or to mate-up
housings that are in a difficult-to-reach location. with standard pipe flange bolt hole patterns.
Standard raised-face, slip-on, stainless steel
Test Sections (in-place) flanges per ASA B16.5 are also available.
Test sections allow Deformation Testing
evaluation of filters
without the on-site inline Non-destructive deformation testing is available.
space penalties This test confirms systems will not deform at
associated with the higher pressures.
proper mixing of aerosol
challenges. Standard Dye Penetrate Testing
tests sections allow
evaluation of an entire Dye penetrate testing is available to evaluate for
bank of filters. Scan test weld defects.
sections allow
evaluation of individual filters to ensure that an Electric Heaters
individual filter does not have any leaks. All
testing is accomplished without exposing the Electric heaters with pre-wired connection boxes
service personnel to contaminants contained by are available.
the housing. Consult Camfil Farr Bulletin 3407-
0902 for standard test sections and scan test High/Low Pressure Options
sections.
Camfil Farr can assemble components to meet
Weather Caps the pressure requirements of most applications.
Although Camfil Farr housings are weatherproof, High-Temperature Construction
an optional weather cap of the same
construction materials as the housing, may be Camfil Farr housings are available with
included to prevent water accumulation on the construction components that can accommodate
top of the housing. Standard weather caps are process air to 450° F (232° C).
5
6. Humidifiers Mounting Bases
Humidifiers are available to meet specific Custom mounting bases are available. These
application needs. are applied for seismic security or to match a
roof curb.
Insulation
Mounted Fans/Controls
Housings may be insulated. All insulation
incorporates double-wall housing construction. Camfil Farr will assemble complete trains of
containment that can include particulate filtration,
Low Leak Testing gaseous filtration and ancillary components such
as fans and controls.
Low-leak testing to lower than standard leak
rates is available. Seismic Qualification
Metal Door Pocket Camfil Farr GB Housings can be qualified in
accordance with the criteria of the Uniform
A metal door pocket to store Operations & Building Code (1994 & 1997). Multiple module
Maintenance Manual (O & M) during system systems consisting of filter housings, test
operation is available. sections, dampers, etc. can be qualified per
application to meet most levels of severe seismic
Moisture Removal Drains & Valves requirements. Additional information to provide
assurance of seismic qualification requires
Moisture removal drains and valves are factory consultation.
available. These are typically applied in
installations that have concerns with regard to The Complete System
condensation, or if moisture separators are used
in the system. Camfil Farr manufactures all of the components
that may be required in a containment train of
Moisture Separators housings. From the filter, to the bag, to the
dampers that isolate the system, quality is
Moisture separators applied as prefiltration are assured through unparalleled component
available. Camfil Farr Moisture Separators have compatibility. Performance and protection from
an efficiency of 98% on 5-micron size droplets. one source, Camfil Farr, a worldwide leader in
Other variations of moisture separators are air filtration technology and production.
available (consult factory).
Quality Assurance
Any Industry that has processes of concern that may include possibly hazardous exhaust components (gases and/or
particulates) has a vested interest in the well-being, and health and safety of employees or others that may have
proximity to the process. Additionally, cognizant authorities including the United States Government, State bodies and
engineering societies have defined minimum standards of care with respect to many hazardous containment
applications. At the bare minimum, equipment assembled for these processes must be manufactured to exacting quality
control procedures.
Camfil Farr has in place, various quality control initiatives that ensure that our products meet or exceed these standards.
These programs are inclusive of raw materials acquisition, procedures of transport and storage, preparation and
assembly of these materials to a final product form, and the testing and qualification to ensure the finished product
meets or exceeds the letter of the Standards.
Camfil Farr Safety and Protection product facilities have been audited by various entities and found to be acceptable.
These procedures are part of a living doctrine that is updated based upon improved technologies and the increased
needs of the applications. Camfil Farr containment products are manufactured under a Camfil Farr Quality Assurance
program, including the basic requirements of ASME-NQA-1 when specified.
Camfil Farr Absolute filters and ASHRAE grade filters that may be used in containment applications are manufactured in
ISO 9001:2000 facilities. Camfil Farr Nuclear Grade Absolute filters complying with the requirements of Section FC of
ASME AG-1 are manufactured under an ASME NQA-1 Quality Assurance Program.
Additional quality assurance procedures are in place to meet the needs of specific end users. These procedures are
available for review and modification by end users, our authorized representatives, and Camfil Farr.
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7. Bag-In/Bag-Out Concept
Camfil Farr GB Housings are designed with safety in mind. Each housing is shipped with an instruction book detailing
how to change the filters. The basics of filter change include installing the new filters in the change-out bag, securing
the bag over the ribbed openings on the housing door opening, and performing the filter change entirely within the bag.
STEP 1 STEP 2
During operation the filter (s) are in place After removing the access door, extend the bag, and use the bag
and the bag is stored in the door gloves to carefully move the contaminated filter into the bag.
STEP 3 STEP 4 STEP 5
Remove the contaminated filter from the Seal the bag with banding ties between the filter Place a new filter in a new bag and secure the
housing, supporting the filter on a table, or and the door opening. Cut the bag with shears to new bag opening to the housing door opening.
optional change-out tray. contain the used filter. Move the old bag stub into the new bag cavity
and install the filter.
Bagging Flange Detail
STEP 6 STEP 7
Move the old bag stub into the third Carefully fold the bag and
service glove sleeve and seal the sleeve place in the door cavity. The illustration above portrays how the bag is placed over the ribs
with banding ties between the bag body Replace door. and held in place there by an elastic shock cord and security strap.
and the glove sleeve.
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8. CF-3X3-412 P-3GB-SS
Number of Filters High
(height of housing) Housing Sheet Metal Type
½ = One (1) filter high (half size) SS = T-304 Stainless steel (standard)
1 = One (1) filter high AS = Aluminized steel
2 = Two (2) filters high 304L = T-304L Stainless steel
3 = Three (3) filters high 316 = T-316 Stainless steel
4 = Four (4) filters high 316L = T-316L Stainless steel
5 = Five (5) filters high
6 = Six (6) filters high
Housing Type/Series
Number of Filters Wide GB = Gasket seal bag-in/bag-out
GN = Gasket seal non-bag-in/bag-out
½ = One (1) filter wide (half size) (Camfil Farr Bulletin 3405-0902)
1 = One (1) filter wide FB = Fluid seal bag-in/bag-out
2 = Two (2) filters wide (Camfil Farr Bulletin 3401-0902)
3 = Three (3) filters wide FN = Fluid seal non-bag-in/bag-out
4 = Four (4) filters wide (Camfil Farr Bulletin 3404-0902)
5 = Five (5) filters wide
6 = Six (6) filters wide
Access Door Arrangement
Prefilter Size 1* = One (1) access door on one side of housing
(depth of prefilter) 2 = Two (2) access doors, one access door on each
(height and width to match side of housing
nominal dimensions) 3 = Two (2) access doors on one side of housing
only, one door for prefilter, one door for primary filter
0 = No prefilter 4= Four (4) access doors, two on each side of
2 = 2” Deep prefilter housing, one for prefilter access, one for primary
4 = 4” Deep prefilter filter access
6 = 6” Deep prefilter
* Housing can only accommodate 2” deep prefilter
and primary filter
Primary Filter Size
(depth of primary filter)
Filter Type
12 = 11½” Actual filter depth
16 = 16” Actual filter depth P = Particulate
18 = 18” Actual filter depth C = Carbon adsorber (HEGA)
CF- 1X1-012P-1GB-SS will require a filter with actual
dimensions of 24” X 24” X 11½”
Sealing
Surface
(Typical)
A A A
C C C
Typical door arrangement 1 with Typical door arrangement 3 with
Typical door arrangement 1
prefilter and primary filter. dual access doors. Designed to
with a single primary filter.
Designed to accommodate accommodate prefilter (s) and
Designed to accommodate
prefilter (s) and primary filter (s) primary filter (s) through separate
primary filter (s) through
through one door opening. access doors. Prefilter depth may
one door opening. Actual
Prefilter depth limited to 2”. be 2”, 4”, or 6”. Primary filter depth
primary filter depth may be
Primary filter depth may be may be 11½”, 16” or 18”.
11½”, 16” or 18”.
11½”, 16” or 18”.
Housing Dimensions A = Height B = Width C = Depth
Above arrangements show upstream, downstream and upstream primary filter seals respectively. Arrangements
1 and 3 are also available with downstream primary filter seal when in-place scan testing is required.
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11. Standard Specification for Camfil Farr GB Containment Housing
1.0 – General include three (3) integral glove ports to assist in filter
change-out. One (1) nylon security strap shall be included
1.1 - Housing shall be Camfil Farr GB-series side-access per filter access port to prevent the bag from sliding off
bag-in/bag-out, gasket seal housing. The housing shall the bagging flange during the change-out process.
be adequately reinforced to withstand a negative or Design of components shall be such that all change-out
positive pressure of 15" water gage. Housing design and operations shall be within the bag so there is a barrier
filter arrangement shall allow air to enter and exit housing between the worker and the filter at all times.
without changing direction. The housing shall
accommodate standard size filters that do not require any 3.0 – Performance
special attachments or devices to function properly in the
housing. 3.1 - All welding procedures, welders, and welder
operators shall be qualified in accordance with ASME
1.2 – Sizes shall be noted on enclosed drawings or other Boiler and Pressure Vessel Code, Section IX. All
supporting materials. production welds shall be visually inspected by qualified
personnel, per Camfil Farr standard procedure number
2.0 – Construction CFW-10001, Visual Inspection of Welds, which
incorporates the workmanship acceptance criteria
2.1 – Housing shall be constructed of 14 gauge and 11 described in Section 5 & 6 of AWS D9.1-1990,
gauge T-304 stainless steel metal. All pressure retaining Specification for Welding of Sheet Metal.
joints and seams shall be continuously welded with no
porosities. Joints and seams requiring intermittent welds, 3.2 - The filter housing shall be manufactured under a
such as reinforcement members, shall be intermittently Camfil Farr Quality Assurance Program (see Note 1
welded. Housing shall be free of burrs and sharp edges. below). The filter housing shall be factory tested for filter
All weld joints and seams that are a portion of any gasket fit, flatness of filter sealing surface and operation of filter
setting surface, (duct connection flanges and filter sealing clamping mechanism. The filter sealing surface and the
surfaces), shall be ground smooth and flush with adjacent complete assembly pressure boundary shall be leak
base metals. All welded joints and seams shall be wire tested by the pressure decay method as defined in ASME
brushed to remove heat discoloration. The housing shall N510-1995 Reaffirmed., Testing of Nuclear Air Cleaning
be reinforced to withstand a positive or negative pressure Systems, paragraphs 6 and 7. The filter sealing surface
of 15” w.g. The upstream and downstream ductwork shall be tested at +10” water gage and have a maximum
connections shall have 1 1/2” outward-turned flanges. leak rate of 0.0005 cfm per cubic foot of housing volume.
The overall system pressure boundary shall be leak
2.2 - The housing shall have a bagging ring around each tested at +15” water gage and have a maximum leak rate
filter access port that is sealed by a gasketed filter access of 0.0005 cfm per cubic foot of housing volume.
door. The filter access door gasket shall be silicone and
shall be replaceable, if necessary. The bagging ring shall 3.3 - Filter bags shall be capable of continuous operating
have two (2) continuous formed raised ridges to secure to temperature extremes of 0° F to 150° F.
the PVC change-out bag. The bagging ring shall be
hemmed on the outer edge to prevent the change-out 3.4 – Multi-wide housing shall be equipped with a filter
bag from tearing. removal rod to pull the filters to the change-out position.
The removal rod shall operate from the inside of the filter
2.3 – Ancillary hardware including filter clamping change out bag.
mechanism, door handles, door studs and labels shall be
300 series stainless steel. The threaded pivot blocks in
the filter clamping mechanisms shall be of brass
construction. Filter access door knobs shall be cast
aluminum and designed to prevent galling of threads.
2.4 – A filter clamping mechanism shall be operated by
means of a standard wrench from outside the housing.
The clamping mechanism shall include two pressure
channel assemblies with eight springs per filter and exert
a minimum filter sealing force of 1,400 pounds per full
size filter, 1050 pounds per half size filter, and 700
pounds per quarter size filter. The force shall be applied
as an even, uniform load along at least 80% of the top
and bottom of each filter outer frame. The filter clamping
mechanism adjustment penetration through the housing Note 1 (to specifying engineer): Camfil Farr manufacturers all of its
wall shall be sealed airtight. containment products using more than one Quality Assurance
Program. Our product-wide Quality Assurance Program is a stringent
process that ensures the equipment is produced in conformance with
our understanding of the intended application. However, this product-
2.5 - One (1) Camfil Farr manufactured PVC change-out wide program does not address all the items specified in ASME-NQA-
bag shall be furnished with each filter access port. 1. If this product must be manufactured under an ASME NQA-1
Quality Assurance Program, please add the following to this
Change-out bags shall be 8-mil. thick with a yellow statement “including the basic requirements of ASME NQA-1.”
translucent, non-sticking, matte finish. It shall include a Please contact the factory if specific clarifications are required.
1/4" diameter elastic shock cord hemmed into the
opening of the bag so when stretched around the housing Optional specification items on next page.
bagging ring flange, a secure fit is created. The bag shall
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